Poor sanitation is not something that only happens in faraway places, it is also something that happens close to home and often without your knowledge. Which of the following does not support this claim?

- Graywater is used on lawns and parks.
- Septic tanks can leak into local waterways.
- Releases of untreated water can go unnoticed.
- People flush prescription medications in toilets.

Poor sanitation and waste management create conditions that may encourage flies and other disease vectors.
Environmental impacts of poor sanitation and waste management at a local level include pollution of land and watercourses, the visual impact of litter, and bad odours.
Poor sanitation is linked to the transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid and polio and exacerbates stunting.
Poor sanitation reduces human well-being, and social and economic development due to impacts such as anxiety, risk of seual assault, and lost educational opportunities.
Diseases related to poor sanitation and water availability causes many sicknesses like cholera, diarrhoea, malaria and typhoid. All these diseases greatly affect the health of students. Students cannot even learn properly because they are sick.

Thus, option "D" is correct.

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